- (9 pcs) 1/4", 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4"

- Precision manufactured to ANSI & DIN industrial standards

- Quality chrome vanadium steel

- Precision heat treated and drop forged for maximum strength

- Larger size marking for easy identification

- Heavy duty rolled case for ease of storage